CN105134856A - Stay cable external closed drum type viscous shearing damper - Google Patents
Stay cable external closed drum type viscous shearing damper Download PDFInfo
- Publication number
- CN105134856A CN105134856A CN201510605535.6A CN201510605535A CN105134856A CN 105134856 A CN105134856 A CN 105134856A CN 201510605535 A CN201510605535 A CN 201510605535A CN 105134856 A CN105134856 A CN 105134856A
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- Prior art keywords
- damping cylinder
- external
- damper
- guide
- ring
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- 238000010008 shearing Methods 0.000 title claims abstract description 19
- 238000013016 damping Methods 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 210000005069 ears Anatomy 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 11
- 238000011900 installation process Methods 0.000 abstract description 4
- 229920000642 polymer Polymers 0.000 abstract description 2
- 238000002627 tracheal intubation Methods 0.000 abstract 4
- 230000005389 magnetism Effects 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 229920002545 silicone oil Polymers 0.000 description 5
- 229920002521 macromolecule Polymers 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The invention relates to a damper, in particular to a stay cable external closed drum type viscous shearing damper, which belongs to the technical field of stay cable dampers, and comprises an inner intubation tube and an outer damping drum, wherein the upper end of the outer damping drum is sealed and connected with a guide cover, the upper end of the inner intubation tube is connected with a guide rod, and the upper end of the guide rod passes through the guide cover, extends outside the damping drum and is connected with a dual-ear ring. Magnetic steels are relatively arranged on the inner end surface of the inner intubation tube and the outer end surface of the inner damping drum, and the magnetisms of the two magnetic steels are opposite. The stay cable external closed drum type viscous shearing damper is of a closed structure, an upper and a lower connectors can guide to limit, polymer viscous damping liquid is filled in the inner intubation tube and is not easy to leak, the stay cable external closed drum type viscous shearing damper is long in service life, convenient to mount and transport, is not affected by mounting angles of stay cables when being installed and used, and the stay cable external closed drum type viscous shearing damper has a self-positioning function, enables installation pitch not to offset during the handling and installation process, and improves installation efficiency.
Description
Technical field
The present invention relates to a kind of damper, a kind of external stayed cable closed cylinder type sticky shearing type damper, belongs to suspension cable damper technique field specifically.
Background technique
Along with the development of modern bridging technology, bridge span structure is towards tall and big, soft, low resistance trend development, and development overlength, Long span Flexible bridge are international a kind of trend.The cable stayed bridge span of building in recent years both at home and abroad day by day increases, and drag-line also day by day increases.Suspension cable is one of main supporting member of cable stayed bridge, because the reasons such as suspension cable quality is little, flexibility is large, internal damping is low very easily produce vibration under extraneous environmental excitation.The inhaul cable vibration continued can cause the fatigue of drag-line and anchor head and the destruction of protective coating, shortens the working life of drag-line, adds the maintenance and repair expense of bridge, the Security of pedestrian to cable stayed bridge also can be made to throw doubt upon.Therefore, suppress Inclined Cable Vibration to be absolutely necessary, existing suspension cable damped products has a lot.
There is following deficiency in existing drag-line external damper:
1. existing drag-line mounted-out viscous shearing dampener is generally unenclosed construction, only cannot be completely isolated with ambient air by dust-proof cover and rubber dust-proof plate, and extraneous dust and steam etc. still can invade, and can affect performance and the working life of damper.
2. existing drag-line mounted-out viscous shearing dampener casing is many by Plate Welding rectangularity, and boundary dimension is comparatively large, and sole mass is heavier, and installation and maintenance is quite inconvenient.And because damper up-down structure is without positioning and guiding measure, upper bottombearing damper casing is free state, causes damper casing location difficulty, has jam phenomenon after installation.
3. existing drag-line mounted-out viscous shearing dampener is when being used for the larger suspension cable of angle in face (>=45 °), because damper casing installation requirement is vertical with drag-line, cause damper casing angle of inclination excessive, namely too small with the angle of horizontal plane, damper box house high viscosity resisting medium can produce excessive, for avoiding the excessive installation approach that can only change damper casing, damper damping performance is decreased, and outward appearance also cannot be unified.
4. existing drag-line external sticky shearing damper up-down structure only connects by resisting medium, infinite place structure, easily causes damper to depart from central position, affect the installation of damper in transport and installation process.
5. existing drag-line external sticky shearing damper is that single pattern is installed in drag-line face, because internally-damped working position is away from drag-line, damper can be made when drag-line out-of-plane vibration to produce turning effect outside face, effectiveness in vibration suppression outside the face reducing damper.
6. existing drag-line external viscous (oil) damper and similar products form seal structure by end cap, cylinder barrel, piston rod, piston, the full silicone oil of inner filling.When external world's motion drives piston rod movement, by extruding inner silicone oil, making silicone oil produce power consumption effect by the aperture on piston, reaching the object of vibration damping.During the work of this type of damper, because the compressibility of silicone oil is less, cylinder interior must produce higher pressure, ensure that silicone oil does not leak, all parts will ensure higher processing and assembly precision, piston rod surface can not have any scratch, pit, and its surface smoothness requirements is also very high, and the sealability of seal ring and directly affect working life of damper working life.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, thus a kind of external stayed cable closed cylinder type sticky shearing type damper is provided, damping cavity is seal structure, upper and lower link tape guide is spacing, filled high polymer viscous damping liquid between internal prongs, damp liquid not easily leaks, long service life, installation and transportation are convenient, install and use and do not affect by drag-line setting angle, in damper, there is self-locating function, in carrying with installation process, mounting hole is apart from offseting, and improves damper installation efficiency.
According to technological scheme provided by the invention, external stayed cable closed cylinder type sticky shearing type damper comprises interpolation pipe and external damping cylinder, in external damping cylinder, bottom is provided with internal damping cylinder, the interpolation pipe that can move up and down is provided with between external damping cylinder and internal damping cylinder, damp liquid is loaded in external damping cylinder, damp liquid is filled in external damping cylinder, gap between internal damping cylinder and interpolation pipe, it is characterized in that: external damping cylinder upper end is tightly connected guide cover, interpolation pipe upper end connects guide rod, and guide rod upper end is passed guide cover, stretched out external damping cylinder and connect ears ring; Described guide cover and guide rod are Spielpassung, are provided with guide ring and dynamic seal ring between guide cover and guide ring, and guide ring is distributed in the upper and lower end of dynamic seal ring, are provided with static sealing ring between guide cover and external damping cylinder; Interpolation pipe inner side end and internal damping cylinder end face outside are provided with two magnetic steel plate be oppositely arranged, and two magnetic steel plate magnetic be oppositely arranged are contrary.
Further, interpolation pipe can adopt single tube structure or multipipe structure.
Further, ears ring comprises two symmetrically arranged otic placodes, and be provided with gap between otic placode, otic placode is provided with through hole, and the end face of ears ring is provided with tapped hole, for being connected with guide rod termination.
Further, external damping cylinder lower end is provided with monaural ring, is provided with joint shaft bearing in monaural ring.
Further, guide rod and ears ring joint are provided with dust-proof cover, and external damping cylinder upper end and guiding housing are held together interior by dust-proof cover.
Compared with the prior art the present invention has the following advantages:
1. structure of the present invention is simple, compact, reasonable, and beautiful shape, reliable performance, external environment applicability be strong, manufacture processing and maintenance cost relative moderate, maintenance, replacing are convenient, good market prospect;
2. the intermolecular internal friction of macromolecule viscous damping liquid by filling between interpolation pipe and damping cylinder, is that thermal dissipation is gone out by the Conversion of Energy of motion, thus plays damping effect; By the size of the viscosity of damp liquid or the change adjustable damping force of amount, to adapt to the drag-line of different size, simple to operate;
3. damp liquid is enclosed in damping cylinder, can not lose its function by the impact of external environment, also can install angle is larger in applicable surface suspension cable;
4. due to damper guide cover upward, during work, damping cylinder is inner without producing higher pressure, and only interpolation pipe and damping cylinder intersection fill damp liquid, its complementary space undamped liquid, therefore, even if rear Sealing damage installed by damper or damp liquid leakage also can not occur in guide rod wearing and tearing, damper still can normally work;
5. be provided with magnet steel in damper, have self-locating function, in carrying with installation process, mounting hole is apart from offseting, and improves damper installation efficiency;
6. can install and use by two damper composition triangles, the inside and outside vibration in face of drag-line can be effectively reduced;
7. two ends earrings and suspension cable are that articulated manner is connected, and the small size deviation of energy adaptive stay cable angle, avoids the stuck of damper, affect damper and normally work.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention.
Description of reference numerals: 1-ears ring, 2-dust-proof cover, 3-guide rod, 4-guide cover, 5-interpolation pipe, 6-external damping cylinder, 7-internal damping cylinder, 8-joint shaft bearing, 9-monaural ring, 10-damp liquid, 11-magnetic steel plate, 12-guide ring, 13-static sealing ring, 14-dynamic seal ring.
Embodiment
Embodiment in is by reference to the accompanying drawings further described by the present invention below:
As shown in Figure 1, the present invention mainly comprises interpolation pipe 5 and external damping cylinder 6, and in external damping cylinder 6, bottom is provided with internal damping cylinder 7, is provided with the interpolation pipe 5 that can move up and down between external damping cylinder 6 and internal damping cylinder 7.Load damp liquid 10 in external damping cylinder 6, damp liquid 10 is filled in external damping cylinder 6, gap between internal damping cylinder 7 and interpolation pipe 5.Described damp liquid 10 adopts macromolecule damp liquid.
Described interpolation pipe 5 can adopt single tube structure or multipipe structure as required.
External damping cylinder 6 upper end is tightly connected guide cover 4, and interpolation pipe 5 upper end connects guide rod 3, guide rod 3 upper end through guide cover 4, stretch out external damping cylinder 6 and connect ears ring 1.
Described guide cover 4 and guide rod 3 are Spielpassung, and be provided with guide ring 12 and dynamic seal ring 14 between guide cover 4 and guide ring 3, guide ring 12 is distributed in the upper and lower end of dynamic seal ring 14.Dynamic seal ring 14 plays the effect of motive sealing between guide rod 3 and guide cover 4.The wear resistance of guide ring 12 is better, mainly plays leading role to the movement of guide rod 3.
Be provided with static sealing ring 13 between described guide cover 4 and external damping cylinder 6, improve sealing by static sealing ring 13.
Described ears ring 1 comprises two symmetrically arranged otic placodes, and be provided with gap between otic placode, otic placode is provided with through hole.The end face of ears ring 1 is provided with tapped hole, for being connected with guide rod 3 termination.
Described guide rod 3 and ears ring 1 joint are provided with dust-proof cover 2, and external damping cylinder 6 upper end and guide cover 4 cover interior by dust-proof cover 2, prevent dust from entering in external damping cylinder 6.
Interpolation pipe 5 inner side end and internal damping cylinder 7 end face outside are provided with two magnetic steel plate be oppositely arranged 11, two magnetic steel plate be oppositely arranged 11 magnetic are contrary, to make between interpolation pipe 5 and internal damping cylinder 7 can because magnetic force is attracting fixed position, preventing interpolation pipe 5 from sinking in damp liquid cannot extract.
External damping cylinder 6 lower end is provided with monaural ring 9, is provided with joint shaft bearing 8 in monaural ring 9.
Working principle of the present invention is: when mounted, on the ears ring that suspension cable is connected to external damping cylinder two ends and monaural ring.In use, vibration force is passed to guide rod by ears ring by Inclined Cable Vibration, guide rod drives interpolation pipe to move reciprocatingly in damping cylinder, the damp liquid of the macromolecule viscosity of filling between interpolation pipe and damping cylinder steel pipe produces intermolecular interior friction by drawing effect, be that heat energy is dissipated by damping pipe wall by the kinetic transformation of motion, thus inhibitory action is played to the vibration of suspension cable.By the viscosity of macromolecule viscous damping liquid or the control of filling amount, the size of adjustable damper damping force, to adapt to the drag-line of different size.Interpolation pipe is contrary with the magnetic pole of the magnet steel inner side surface on damping cylinder, magnet steel is attracted each other and pins down, can avoid damper install before the skew of installation dimension in transport and operating process, preventing interpolation pipe from sinking in damp liquid cannot extract.
Claims (5)
1. an external stayed cable closed cylinder type sticky shearing type damper, comprise interpolation pipe (5) and external damping cylinder (6), external damping cylinder (6) interior bottom is provided with internal damping cylinder (7), the interpolation pipe (5) that can move up and down is provided with between external damping cylinder (6) and internal damping cylinder (7), damp liquid (10) is loaded in external damping cylinder (6), damp liquid (10) is filled in external damping cylinder (6), in gap between internal damping cylinder (7) and interpolation pipe (5), it is characterized in that: external damping cylinder (6) upper end is tightly connected guide cover (4), interpolation pipe (5) upper end connects guide rod (3), guide rod (3) upper end is through guide cover (4), stretch out external damping cylinder (6) and connect ears ring (1), described guide cover (4) and guide rod (3) are Spielpassung, guide ring (12) and dynamic seal ring (14) is provided with between guide cover (4) and guide rod (3), guide ring (12) is distributed in the upper and lower end of dynamic seal ring (14), is provided with static sealing ring (13) between guide cover (4) and external damping cylinder (6), interpolation pipe (5) inner side end and internal damping cylinder (7) end face outside are provided with two magnetic steel plate be oppositely arranged (11), and two magnetic steel plate be oppositely arranged (11) magnetic are contrary.
2. external stayed cable closed cylinder type sticky shearing type damper as claimed in claim 1, is characterized in that: described interpolation pipe (5) can adopt single tube structure or multipipe structure.
3. external stayed cable closed cylinder type sticky shearing type damper as claimed in claim 1, it is characterized in that: described ears ring (1) comprises two symmetrically arranged otic placodes, gap is provided with between otic placode, otic placode is provided with through hole, the end face of ears ring (1) is provided with tapped hole, for being connected with guide rod (3) termination.
4. external stayed cable closed cylinder type sticky shearing type damper as claimed in claim 1, is characterized in that: described external damping cylinder (6) lower end is provided with monaural ring (9), is provided with joint shaft bearing (8) in monaural ring (9).
5. external stayed cable closed cylinder type sticky shearing type damper as claimed in claim 1, it is characterized in that: described guide rod (3) and ears ring (1) joint are provided with dust-proof cover (2), external damping cylinder (6) upper end and guide cover (4) cover are held together interior by dust-proof cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605535.6A CN105134856B (en) | 2015-09-21 | 2015-09-21 | External stayed cable closed cylinder type sticky shearing type damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605535.6A CN105134856B (en) | 2015-09-21 | 2015-09-21 | External stayed cable closed cylinder type sticky shearing type damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105134856A true CN105134856A (en) | 2015-12-09 |
| CN105134856B CN105134856B (en) | 2017-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510605535.6A Active CN105134856B (en) | 2015-09-21 | 2015-09-21 | External stayed cable closed cylinder type sticky shearing type damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134856B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609493A (en) * | 2016-12-30 | 2017-05-03 | 无锡市弘谷振控技术有限公司 | Built-in damp damping device for stay cable |
| CN108662072A (en) * | 2018-07-02 | 2018-10-16 | 浙江大学 | A kind of Parameter adjustable inertia mass damper for model suspension cable damping test |
| CN110296174A (en) * | 2019-07-11 | 2019-10-01 | 南京林业大学 | A kind of shear mode magneto-rheological vibration damper |
| CN116180583A (en) * | 2023-04-24 | 2023-05-30 | 湖南省潇振工程科技有限公司 | Ball screw type eddy current damping stay cable vibration damper |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0860619A (en) * | 1994-08-19 | 1996-03-05 | Ishikawajima Harima Heavy Ind Co Ltd | Vibration-control damper for cable of diagonally stretched bridge |
| CN101245820A (en) * | 2004-12-11 | 2008-08-20 | 尹学军 | Damper |
| CN103061425A (en) * | 2013-01-11 | 2013-04-24 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Series-parallel multistage valve vicious damping method and damper |
| CN203488625U (en) * | 2013-09-25 | 2014-03-19 | 无锡市弘谷振控技术有限公司 | Non-electrified magnetorheological liquid damper |
| CN104179877A (en) * | 2014-08-26 | 2014-12-03 | 合肥工业大学 | All-shearing type magneto-rheological damper |
| CN205013569U (en) * | 2015-09-21 | 2016-02-03 | 无锡市弘谷振控技术有限公司 | External airtight cylinder viscidity shearing type attenuator of suspension cable |
-
2015
- 2015-09-21 CN CN201510605535.6A patent/CN105134856B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0860619A (en) * | 1994-08-19 | 1996-03-05 | Ishikawajima Harima Heavy Ind Co Ltd | Vibration-control damper for cable of diagonally stretched bridge |
| CN101245820A (en) * | 2004-12-11 | 2008-08-20 | 尹学军 | Damper |
| CN103061425A (en) * | 2013-01-11 | 2013-04-24 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Series-parallel multistage valve vicious damping method and damper |
| CN203488625U (en) * | 2013-09-25 | 2014-03-19 | 无锡市弘谷振控技术有限公司 | Non-electrified magnetorheological liquid damper |
| CN104179877A (en) * | 2014-08-26 | 2014-12-03 | 合肥工业大学 | All-shearing type magneto-rheological damper |
| CN205013569U (en) * | 2015-09-21 | 2016-02-03 | 无锡市弘谷振控技术有限公司 | External airtight cylinder viscidity shearing type attenuator of suspension cable |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609493A (en) * | 2016-12-30 | 2017-05-03 | 无锡市弘谷振控技术有限公司 | Built-in damp damping device for stay cable |
| CN106609493B (en) * | 2016-12-30 | 2018-08-10 | 无锡市弘谷振控技术有限公司 | Stay cable internal damping device |
| CN108662072A (en) * | 2018-07-02 | 2018-10-16 | 浙江大学 | A kind of Parameter adjustable inertia mass damper for model suspension cable damping test |
| CN110296174A (en) * | 2019-07-11 | 2019-10-01 | 南京林业大学 | A kind of shear mode magneto-rheological vibration damper |
| CN116180583A (en) * | 2023-04-24 | 2023-05-30 | 湖南省潇振工程科技有限公司 | Ball screw type eddy current damping stay cable vibration damper |
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| Publication number | Publication date |
|---|---|
| CN105134856B (en) | 2017-09-22 |
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Effective date of registration: 20231113 Address after: 214101 No. 3, zone a, science and Technology Industrial Park, Xishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee after: Jiangsu Honggu Damping Technology Co.,Ltd. Address before: Building 3, Zone A, Science and Technology Industrial Park, Xishan Economic Development Zone, Wuxi City, Jiangsu Province, 214101 Patentee before: WUXI HONGGU ZHENKONG TECHNOLOGY Co.,Ltd. |
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